The Renault K7M 744 is a 1,598 cc, inline‑four petrol engine produced between 1996 and 2008. It features a single overhead camshaft (SOHC) design with 8 valves and multi‑point fuel injection, delivering outputs typically around 55 kW (75 PS) and 127 Nm of torque. Its simple, non‑turbocharged architecture prioritises cost — effective ownership and ease of maintenance.
Fitted to models such as the Clio II, Mégane I, and Kangoo I, the K7M 744 was engineered for economical urb…
Production years 1996–2000 meet Euro 2 standards; 2001–2008 models may have Euro 3 compliance depending on market .
The Renault K7M 744 is a 1,598 cc inline‑four naturally aspirated petrol engine engineered for compact and light commercial vehicles (1996-2008). It combines multi‑point fuel injection with a SOHC 8‑valve head to deliver adequate, economical power and straightforward drivability. Designed to meet Euro 2 (and some market‑specific Euro 3) standards, it balances low-cost ownership with basic performance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 1,598 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, SOHC, 8‑valve | |
Aspiration | Naturally Aspirated | |
Bore × stroke | 79.5 mm × 80.5 mm | |
Power output | 55 kW (75 PS) | |
Torque | 127 Nm @ 2,800 rpm | |
Fuel system | Multi‑point fuel injection (Sagem) | |
Emissions standard | Euro 2 (pre‑2001); Euro 3 depending on market | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Belt‑driven (requires periodic replacement) | |
Oil type | Renault RN0700 (SAE 10W‑40) | |
Dry weight | 108 kg |
The Renault K7M 744 was used across Renault's A/B platforms with transverse mounting. This engine received platform-specific adaptations-reinforced sump in the Kangoo and revised engine mounts in the Mégane-and from 2005 the Clio III adopted a different engine family, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The K7M 744's primary reliability risk is crankshaft position sensor failure, with elevated incidence in vehicles subjected to high underhood temperatures. Renault internal data indicated a notable number of cases before 100,000 km, while owner reports frequently cite timing belt failure as a major concern if neglected. Infrequent coolant changes and use of incorrect oil viscosity can lead to sludge buildup.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The K7M 744 is renowned for its simplicity and durability. With basic maintenance—especially timely timing belt changes (every 90,000 km/4 years) and coolant flushes—it can easily surpass 300,000 km. The main weak point is the crankshaft sensor, which is inexpensive and easy to replace.
The most frequent issues are crankshaft position sensor failure (causing stalling), timing belt failure if neglected, coolant leaks from plastic housings, and head gasket failure following overheating. These are well-documented in Renault service bulletins and owner reports.
This 1.6L 8-valve petrol engine was primarily used in the Renault Clio II (1998-2005), Mégane I (1996-2002), and Kangoo I (1997-2008), typically badged as '1.6 8V'. It was also used in some Dacia models of that era.
Significant power gains are difficult due to the 8-valve head design. Basic modifications like a free-flow exhaust and air filter may yield 5-10 PS. More substantial increases require head work or forced induction, which is rarely cost-effective for this engine.
Fuel economy is modest. Expect around 8.0-9.0 L/100km (31-35 mpg UK) in mixed driving for a Mégane or Kangoo. Smaller, lighter Clios may achieve 7.5-8.5 L/100km (33-37 mpg UK). Consumption is higher in city traffic and with aggressive driving.
Yes. The K7M 744 is an interference engine. If the timing belt breaks or jumps, the pistons will collide with the open valves, causing severe internal damage that requires a costly engine rebuild or replacement.
Renault recommends RN0700 specification oil, typically SAE 10W-40. A good quality mineral or semi-synthetic oil is sufficient. Change it every 10,000 km or 12 months to prevent sludge buildup, especially in stop-start driving.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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